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          <h1 class="post-title" itemprop="name headline">Java-Poi创建与读取Excel</h1>
        

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        <p><a href="https://poi.apache.org/download.html" target="_blank" rel="noopener">Apache POI 下载</a><br><a id="more"></a></p>
<ol>
<li><p>创建Excel表</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br><span class="line">72</span><br><span class="line">73</span><br><span class="line">74</span><br><span class="line">75</span><br><span class="line">76</span><br><span class="line">77</span><br><span class="line">78</span><br><span class="line">79</span><br><span class="line">80</span><br><span class="line">81</span><br><span class="line">82</span><br><span class="line">83</span><br><span class="line">84</span><br><span class="line">85</span><br><span class="line">86</span><br><span class="line">87</span><br><span class="line">88</span><br><span class="line">89</span><br><span class="line">90</span><br><span class="line">91</span><br><span class="line">92</span><br><span class="line">93</span><br><span class="line">94</span><br><span class="line">95</span><br><span class="line">96</span><br><span class="line">97</span><br><span class="line">98</span><br><span class="line">99</span><br><span class="line">100</span><br><span class="line">101</span><br><span class="line">102</span><br><span class="line">103</span><br><span class="line">104</span><br><span class="line">105</span><br><span class="line">106</span><br><span class="line">107</span><br><span class="line">108</span><br><span class="line">109</span><br><span class="line">110</span><br><span class="line">111</span><br><span class="line">112</span><br><span class="line">113</span><br><span class="line">114</span><br><span class="line">115</span><br><span class="line">116</span><br><span class="line">117</span><br><span class="line">118</span><br><span class="line">119</span><br><span class="line">120</span><br><span class="line">121</span><br><span class="line">122</span><br><span class="line">123</span><br><span class="line">124</span><br><span class="line">125</span><br><span class="line">126</span><br><span class="line">127</span><br><span class="line">128</span><br></pre></td><td class="code"><pre><span class="line">public class Test &#123;</span><br><span class="line">	/** 存储路径 */</span><br><span class="line">	private static String path = &quot;E:/Student.xls&quot;;</span><br><span class="line">	/** 列表信息 */</span><br><span class="line">	private static List&lt;Student&gt; mList;</span><br><span class="line">	/** 工作簿 */</span><br><span class="line">	private static HSSFWorkbook workbook;</span><br><span class="line">	/** 格式化时间 */</span><br><span class="line">	static SimpleDateFormat dateFormat;</span><br><span class="line">	static &#123;</span><br><span class="line">		mList = new ArrayList&lt;Student&gt;();</span><br><span class="line">		dateFormat = new SimpleDateFormat(&quot;yyyy-mm-dd&quot;);</span><br><span class="line">		try &#123;</span><br><span class="line">			Student user1 = new Student(1, &quot;张三&quot;, 16, dateFormat.parse(&quot;1997-03-12&quot;));</span><br><span class="line">			Student user2 = new Student(2, &quot;李四&quot;, 17, dateFormat.parse(&quot;1996-08-12&quot;));</span><br><span class="line">			Student user3 = new Student(3, &quot;王五&quot;, 26, dateFormat.parse(&quot;1985-11-12&quot;));</span><br><span class="line">			mList.add(user1);</span><br><span class="line">			mList.add(user2);</span><br><span class="line">			mList.add(user3);</span><br><span class="line">		&#125; catch (ParseException e) &#123;</span><br><span class="line">			e.printStackTrace();</span><br><span class="line">		&#125;</span><br><span class="line">	&#125;</span><br><span class="line"></span><br><span class="line">	/**</span><br><span class="line">	 * 主函数</span><br><span class="line">	 */</span><br><span class="line">	public static void main(String[] args) &#123;</span><br><span class="line">		// 创建一个工作簿</span><br><span class="line">		workbook = new HSSFWorkbook();</span><br><span class="line">		// 第二步, 在WebBook中添加一个sheet,对应Excel中的sheet</span><br><span class="line">		HSSFSheet sheet = workbook.createSheet(&quot;学生表一&quot;);</span><br><span class="line">		// 第三步, 在sheet中添加表头第0行</span><br><span class="line">		HSSFRow row = sheet.createRow(0);</span><br><span class="line">		// 第四步, 创建单元格, 并设置值表头, 设置表头居中</span><br><span class="line">		HSSFCellStyle style = workbook.createCellStyle();</span><br><span class="line">		// 创建一个居中显示的头</span><br><span class="line">		style.setAlignment(HorizontalAlignment.CENTER);</span><br><span class="line">		style.setFillPattern(FillPatternType.SOLID_FOREGROUND);</span><br><span class="line"></span><br><span class="line">		// 创建第一行</span><br><span class="line">		HSSFCell cell = row.createCell(0);</span><br><span class="line">		cell.setCellValue(&quot;学号&quot;);</span><br><span class="line">		cell.setCellStyle(style);</span><br><span class="line"></span><br><span class="line">		cell = row.createCell(1);</span><br><span class="line">		cell.setCellValue(&quot;姓名&quot;);</span><br><span class="line">		cell.setCellStyle(style);</span><br><span class="line"></span><br><span class="line">		cell = row.createCell(2);</span><br><span class="line">		cell.setCellValue(&quot;年龄&quot;);</span><br><span class="line">		cell.setCellStyle(style);</span><br><span class="line"></span><br><span class="line">		cell = row.createCell(3);</span><br><span class="line">		cell.setCellValue(&quot;生日&quot;);</span><br><span class="line">		cell.setCellStyle(style);</span><br><span class="line"></span><br><span class="line">		String[] textlist = &#123; &quot;16&quot;, &quot;17&quot;, &quot;26&quot;, &quot;20&quot;, &quot;23&quot; &#125;;</span><br><span class="line">		// 创建下拉列表</span><br><span class="line">		sheet = setHSSFValidation(sheet, textlist, 0, 500, 2, 2);</span><br><span class="line"></span><br><span class="line">		// 写入实体数据</span><br><span class="line">		for (int i = 0; i &lt; mList.size(); i++) &#123;</span><br><span class="line">			row = sheet.createRow(i + 1);</span><br><span class="line">			Student student = mList.get(i);</span><br><span class="line">			// 第四步,创建单元格并设置值</span><br><span class="line">			row.createCell(0).setCellValue(student.getId());</span><br><span class="line">			row.createCell(1).setCellValue(student.getName());</span><br><span class="line">			row.createCell(2).setCellValue(student.getAge());</span><br><span class="line">			row.createCell(3).setCellValue(dateFormat.format(student.getBirth()));</span><br><span class="line">		&#125;</span><br><span class="line"></span><br><span class="line">		try &#123;</span><br><span class="line">			FileOutputStream fos = new FileOutputStream(path);</span><br><span class="line">			workbook.write(fos);</span><br><span class="line">			fos.close();</span><br><span class="line">		&#125; catch (Exception e) &#123;</span><br><span class="line">			e.printStackTrace();</span><br><span class="line">		&#125;</span><br><span class="line"></span><br><span class="line">	&#125;</span><br><span class="line"></span><br><span class="line">	/**</span><br><span class="line">	 * 设置某些列的值只能输入预制的数据,显示下拉框.</span><br><span class="line">	 * @param sheet 要设置的sheet.</span><br><span class="line">	 * @param textlist 下拉框显示的内容</span><br><span class="line">	 * @param firstRow 开始行</span><br><span class="line">	 * @param endRow 结束行</span><br><span class="line">	 * @param firstCol 开始列</span><br><span class="line">	 * @param endCol 结束列</span><br><span class="line">	 * @return 设置好的sheet.</span><br><span class="line">	 */</span><br><span class="line">	private static HSSFSheet setHSSFValidation(HSSFSheet sheet, String[] textlist, int firstRow, int lastRow,</span><br><span class="line">			int firstCol, int lastCol) &#123;</span><br><span class="line">		// 加载下拉列表内容</span><br><span class="line">		DVConstraint constraint = DVConstraint.createExplicitListConstraint(textlist);</span><br><span class="line">		// 设置数据有效性加载在哪个单元格上,四个参数分别是：起始行、终止行、起始列、终止列</span><br><span class="line">		CellRangeAddressList regions = new CellRangeAddressList(firstRow, lastRow, firstCol, lastCol);</span><br><span class="line">		// 数据有效性对象</span><br><span class="line">		HSSFDataValidation dataValidation = new HSSFDataValidation(regions, constraint);</span><br><span class="line">		sheet.addValidationData(dataValidation);</span><br><span class="line">		return sheet;</span><br><span class="line">	&#125;</span><br><span class="line">	</span><br><span class="line">	/**</span><br><span class="line">	 * 设置单元格上提示</span><br><span class="line">	 * @param sheet  要设置的sheet.</span><br><span class="line">	 * @param promptTitle 标题</span><br><span class="line">	 * @param promptContent 内容</span><br><span class="line">	 * @param firstRow 开始行</span><br><span class="line">	 * @param endRow  结束行</span><br><span class="line">	 * @param firstCol  开始列</span><br><span class="line">	 * @param endCol  结束列</span><br><span class="line">	 * @return 设置好的sheet.</span><br><span class="line">	 */</span><br><span class="line">	public static HSSFSheet setHSSFPrompt(HSSFSheet sheet, String promptTitle,</span><br><span class="line">			String promptContent, int firstRow, int endRow ,int firstCol,int endCol) &#123;</span><br><span class="line">		// 构造constraint对象</span><br><span class="line">		DVConstraint constraint = DVConstraint.createCustomFormulaConstraint(&quot;BB1&quot;);</span><br><span class="line">		// 四个参数分别是：起始行、终止行、起始列、终止列</span><br><span class="line">		CellRangeAddressList regions = new CellRangeAddressList(firstRow,endRow,firstCol, endCol);</span><br><span class="line">		// 数据有效性对象</span><br><span class="line">		HSSFDataValidation data_validation_view = new HSSFDataValidation(regions,constraint);</span><br><span class="line">		data_validation_view.createPromptBox(promptTitle, promptContent);</span><br><span class="line">		sheet.addValidationData(data_validation_view);</span><br><span class="line">		return sheet;</span><br><span class="line">	&#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
</li>
<li><p>读取Excel表</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br><span class="line">72</span><br><span class="line">73</span><br><span class="line">74</span><br><span class="line">75</span><br><span class="line">76</span><br><span class="line">77</span><br><span class="line">78</span><br><span class="line">79</span><br><span class="line">80</span><br><span class="line">81</span><br><span class="line">82</span><br><span class="line">83</span><br><span class="line">84</span><br><span class="line">85</span><br><span class="line">86</span><br><span class="line">87</span><br><span class="line">88</span><br><span class="line">89</span><br><span class="line">90</span><br><span class="line">91</span><br><span class="line">92</span><br><span class="line">93</span><br><span class="line">94</span><br><span class="line">95</span><br><span class="line">96</span><br><span class="line">97</span><br><span class="line">98</span><br><span class="line">99</span><br><span class="line">100</span><br><span class="line">101</span><br><span class="line">102</span><br><span class="line">103</span><br><span class="line">104</span><br><span class="line">105</span><br><span class="line">106</span><br><span class="line">107</span><br><span class="line">108</span><br><span class="line">109</span><br><span class="line">110</span><br><span class="line">111</span><br><span class="line">112</span><br><span class="line">113</span><br><span class="line">114</span><br><span class="line">115</span><br><span class="line">116</span><br><span class="line">117</span><br><span class="line">118</span><br><span class="line">119</span><br><span class="line">120</span><br><span class="line">121</span><br><span class="line">122</span><br><span class="line">123</span><br><span class="line">124</span><br><span class="line">125</span><br><span class="line">126</span><br><span class="line">127</span><br><span class="line">128</span><br><span class="line">129</span><br><span class="line">130</span><br><span class="line">131</span><br><span class="line">132</span><br><span class="line">133</span><br><span class="line">134</span><br><span class="line">135</span><br><span class="line">136</span><br><span class="line">137</span><br><span class="line">138</span><br><span class="line">139</span><br><span class="line">140</span><br><span class="line">141</span><br><span class="line">142</span><br><span class="line">143</span><br><span class="line">144</span><br><span class="line">145</span><br><span class="line">146</span><br><span class="line">147</span><br><span class="line">148</span><br><span class="line">149</span><br><span class="line">150</span><br><span class="line">151</span><br><span class="line">152</span><br><span class="line">153</span><br><span class="line">154</span><br><span class="line">155</span><br><span class="line">156</span><br><span class="line">157</span><br><span class="line">158</span><br><span class="line">159</span><br><span class="line">160</span><br><span class="line">161</span><br><span class="line">162</span><br><span class="line">163</span><br><span class="line">164</span><br><span class="line">165</span><br><span class="line">166</span><br><span class="line">167</span><br><span class="line">168</span><br><span class="line">169</span><br><span class="line">170</span><br><span class="line">171</span><br><span class="line">172</span><br><span class="line">173</span><br><span class="line">174</span><br><span class="line">175</span><br><span class="line">176</span><br><span class="line">177</span><br><span class="line">178</span><br><span class="line">179</span><br><span class="line">180</span><br><span class="line">181</span><br><span class="line">182</span><br><span class="line">183</span><br><span class="line">184</span><br><span class="line">185</span><br><span class="line">186</span><br><span class="line">187</span><br><span class="line">188</span><br><span class="line">189</span><br><span class="line">190</span><br><span class="line">191</span><br><span class="line">192</span><br><span class="line">193</span><br><span class="line">194</span><br><span class="line">195</span><br><span class="line">196</span><br><span class="line">197</span><br><span class="line">198</span><br><span class="line">199</span><br><span class="line">200</span><br><span class="line">201</span><br><span class="line">202</span><br><span class="line">203</span><br><span class="line">204</span><br><span class="line">205</span><br><span class="line">206</span><br><span class="line">207</span><br><span class="line">208</span><br><span class="line">209</span><br><span class="line">210</span><br><span class="line">211</span><br><span class="line">212</span><br></pre></td><td class="code"><pre><span class="line">  </span><br><span class="line">/** </span><br><span class="line"> * 读取Excel表格的功能类 </span><br><span class="line"> */  </span><br><span class="line">public class ExcelReader &#123;  </span><br><span class="line">    private POIFSFileSystem fs;  </span><br><span class="line">    private HSSFWorkbook wb;  </span><br><span class="line">    private HSSFSheet sheet;  </span><br><span class="line">    private HSSFRow row;  </span><br><span class="line">  </span><br><span class="line">    /** </span><br><span class="line">     * 读取Excel表格表头的内容 </span><br><span class="line">     * @param InputStream </span><br><span class="line">     * @return String 表头内容的数组 </span><br><span class="line">     */  </span><br><span class="line">    public String[] readExcelTitle(InputStream is) &#123;  </span><br><span class="line">        try &#123;  </span><br><span class="line">            fs = new POIFSFileSystem(is);  </span><br><span class="line">            wb = new HSSFWorkbook(fs);  </span><br><span class="line">        &#125; catch (IOException e) &#123;  </span><br><span class="line">            e.printStackTrace();  </span><br><span class="line">        &#125;  </span><br><span class="line">        sheet = wb.getSheetAt(0);  </span><br><span class="line">        row = sheet.getRow(0);  </span><br><span class="line">        // 标题总列数  </span><br><span class="line">        int colNum = row.getPhysicalNumberOfCells();  </span><br><span class="line">        System.out.println(&quot;colNum:&quot; + colNum);  </span><br><span class="line">        String[] title = new String[colNum];  </span><br><span class="line">        for (int i = 0; i &lt; colNum; i++) &#123;  </span><br><span class="line">            //title[i] = getStringCellValue(row.getCell((short) i));  </span><br><span class="line">            title[i] = getCellFormatValue(row.getCell((short) i));  </span><br><span class="line">        &#125;  </span><br><span class="line">        return title;  </span><br><span class="line">    &#125;  </span><br><span class="line">  </span><br><span class="line">    /** </span><br><span class="line">     * 读取Excel数据内容 </span><br><span class="line">     * @param InputStream </span><br><span class="line">     * @return Map 包含单元格数据内容的Map对象 </span><br><span class="line">     */  </span><br><span class="line">    public Map&lt;Integer, String&gt; readExcelContent(InputStream is) &#123;  </span><br><span class="line">        Map&lt;Integer, String&gt; content = new HashMap&lt;Integer, String&gt;();  </span><br><span class="line">        String str = &quot;&quot;;  </span><br><span class="line">        try &#123;  </span><br><span class="line">            fs = new POIFSFileSystem(is);  </span><br><span class="line">            wb = new HSSFWorkbook(fs);  </span><br><span class="line">        &#125; catch (IOException e) &#123;  </span><br><span class="line">            e.printStackTrace();  </span><br><span class="line">        &#125;  </span><br><span class="line">        sheet = wb.getSheetAt(0);  </span><br><span class="line">        // 得到总行数  </span><br><span class="line">        int rowNum = sheet.getLastRowNum();  </span><br><span class="line">        row = sheet.getRow(0);  </span><br><span class="line">        int colNum = row.getPhysicalNumberOfCells();  </span><br><span class="line">        // 正文内容应该从第二行开始,第一行为表头的标题  </span><br><span class="line">        for (int i = 1; i &lt;= rowNum; i++) &#123;  </span><br><span class="line">            row = sheet.getRow(i);  </span><br><span class="line">            int j = 0;  </span><br><span class="line">            while (j &lt; colNum) &#123;  </span><br><span class="line">                // 每个单元格的数据内容用&quot;-&quot;分割开，以后需要时用String类的replace()方法还原数据  </span><br><span class="line">                // 也可以将每个单元格的数据设置到一个javabean的属性中，此时需要新建一个javabean  </span><br><span class="line">                // str += getStringCellValue(row.getCell((short) j)).trim() +  </span><br><span class="line">                // &quot;-&quot;;  </span><br><span class="line">                str += getCellFormatValue(row.getCell((short) j)).trim() + &quot;    &quot;;  </span><br><span class="line">                j++;  </span><br><span class="line">            &#125;  </span><br><span class="line">            content.put(i, str);  </span><br><span class="line">            str = &quot;&quot;;  </span><br><span class="line">        &#125;  </span><br><span class="line">        return content;  </span><br><span class="line">    &#125;  </span><br><span class="line">  </span><br><span class="line">    /** </span><br><span class="line">     * 获取单元格数据内容为字符串类型的数据 </span><br><span class="line">     *  </span><br><span class="line">     * @param cell Excel单元格 </span><br><span class="line">     * @return String 单元格数据内容 </span><br><span class="line">     */  </span><br><span class="line">    private String getStringCellValue(HSSFCell cell) &#123;  </span><br><span class="line">        if (null == cell) &#123;  </span><br><span class="line">            return &quot;&quot;;  </span><br><span class="line">        &#125;</span><br><span class="line">        String strCell = &quot;&quot;;</span><br><span class="line">        switch (cell.getCellTypeEnum()) &#123;</span><br><span class="line">        case STRING:</span><br><span class="line">            strCell = cell.getStringCellValue();  </span><br><span class="line">            break;  </span><br><span class="line">        case NUMERIC:  </span><br><span class="line">            strCell = String.valueOf(cell.getNumericCellValue());  </span><br><span class="line">            break;  </span><br><span class="line">        case BOOLEAN:  </span><br><span class="line">            strCell = String.valueOf(cell.getBooleanCellValue());  </span><br><span class="line">            break;  </span><br><span class="line">        case BLANK:  </span><br><span class="line">            strCell = &quot;&quot;;  </span><br><span class="line">            break;  </span><br><span class="line">        default:  </span><br><span class="line">            strCell = &quot;&quot;;  </span><br><span class="line">            break;  </span><br><span class="line">        &#125;  </span><br><span class="line">        if (strCell.equals(&quot;&quot;) || strCell == null) &#123;  </span><br><span class="line">            return &quot;&quot;;  </span><br><span class="line">        &#125;    </span><br><span class="line">        return strCell;  </span><br><span class="line">    &#125;  </span><br><span class="line">  </span><br><span class="line">    /** </span><br><span class="line">     * 获取单元格数据内容为日期类型的数据 </span><br><span class="line">     *  </span><br><span class="line">     * @param cell </span><br><span class="line">     *            Excel单元格 </span><br><span class="line">     * @return String 单元格数据内容 </span><br><span class="line">     */  </span><br><span class="line">    private String getDateCellValue(HSSFCell cell) &#123;  </span><br><span class="line">        String result = &quot;&quot;;  </span><br><span class="line">        try &#123;  </span><br><span class="line">            CellType cellType = cell.getCellTypeEnum();  </span><br><span class="line">            if (cellType == CellType.NUMERIC) &#123;  </span><br><span class="line">                Date date = cell.getDateCellValue();  </span><br><span class="line">                result = (date.getYear() + 1900) + &quot;-&quot; + (date.getMonth() + 1)  </span><br><span class="line">                        + &quot;-&quot; + date.getDate();  </span><br><span class="line">            &#125; else if (cellType == CellType.STRING) &#123;  </span><br><span class="line">                String date = getStringCellValue(cell);  </span><br><span class="line">                result = date.replaceAll(&quot;[年月]&quot;, &quot;-&quot;).replace(&quot;日&quot;, &quot;&quot;).trim();  </span><br><span class="line">            &#125; else if (cellType == CellType.BLANK) &#123;  </span><br><span class="line">                result = &quot;&quot;;  </span><br><span class="line">            &#125;  </span><br><span class="line">        &#125; catch (Exception e) &#123;  </span><br><span class="line">            System.out.println(&quot;日期格式不正确!&quot;);  </span><br><span class="line">            e.printStackTrace();  </span><br><span class="line">        &#125;  </span><br><span class="line">        return result;  </span><br><span class="line">    &#125;  </span><br><span class="line">  </span><br><span class="line">    /** </span><br><span class="line">     * 根据HSSFCell类型设置数据 </span><br><span class="line">     * @param cell </span><br><span class="line">     * @return </span><br><span class="line">     */  </span><br><span class="line">    private String getCellFormatValue(HSSFCell cell) &#123;  </span><br><span class="line">        String cellvalue = &quot;&quot;;  </span><br><span class="line">        if (cell != null) &#123;  </span><br><span class="line">            // 判断当前Cell的Type  </span><br><span class="line">            switch (cell.getCellTypeEnum()) &#123;  </span><br><span class="line">            // 如果当前Cell的Type为NUMERIC  </span><br><span class="line">            case NUMERIC:  </span><br><span class="line">            case FORMULA: &#123;  </span><br><span class="line">                // 判断当前的cell是否为Date  </span><br><span class="line">                if (HSSFDateUtil.isCellDateFormatted(cell)) &#123;  </span><br><span class="line">                    // 如果是Date类型则，转化为Data格式  </span><br><span class="line">                      </span><br><span class="line">                    //方法1：这样子的data格式是带时分秒的：2011-10-12 0:00:00  </span><br><span class="line">                    //cellvalue = cell.getDateCellValue().toLocaleString();  </span><br><span class="line">                      </span><br><span class="line">                    //方法2：这样子的data格式是不带带时分秒的：2011-10-12  </span><br><span class="line">                    Date date = cell.getDateCellValue();  </span><br><span class="line">                    SimpleDateFormat sdf = new SimpleDateFormat(&quot;yyyy-MM-dd&quot;);  </span><br><span class="line">                    cellvalue = sdf.format(date);  </span><br><span class="line">                      </span><br><span class="line">                &#125;  </span><br><span class="line">                // 如果是纯数字  </span><br><span class="line">                else &#123;  </span><br><span class="line">                    // 取得当前Cell的数值  </span><br><span class="line">                    cellvalue = String.valueOf(cell.getNumericCellValue());  </span><br><span class="line">                &#125;  </span><br><span class="line">                break;  </span><br><span class="line">            &#125;  </span><br><span class="line">            // 如果当前Cell的Type为STRIN  </span><br><span class="line">            case STRING:  </span><br><span class="line">                // 取得当前的Cell字符串  </span><br><span class="line">                cellvalue = cell.getRichStringCellValue().getString();  </span><br><span class="line">                break;  </span><br><span class="line">            // 默认的Cell值  </span><br><span class="line">            default:  </span><br><span class="line">                cellvalue = &quot; &quot;;  </span><br><span class="line">            &#125;  </span><br><span class="line">        &#125; else &#123;  </span><br><span class="line">            cellvalue = &quot;&quot;;  </span><br><span class="line">        &#125;  </span><br><span class="line">        return cellvalue;  </span><br><span class="line">  </span><br><span class="line">    &#125;  </span><br><span class="line">  </span><br><span class="line">	/** 存储路径 */</span><br><span class="line">	private static String path = &quot;E:/Student.xls&quot;;</span><br><span class="line">    public static void main(String[] args) &#123;  </span><br><span class="line">        try &#123;  </span><br><span class="line">            // 对读取Excel表格标题测试  </span><br><span class="line">            InputStream is = new FileInputStream(path);  </span><br><span class="line">            ExcelReader excelReader = new ExcelReader();  </span><br><span class="line">            String[] title = excelReader.readExcelTitle(is);  </span><br><span class="line">            System.out.println(&quot;获得Excel表格的标题:&quot;);  </span><br><span class="line">            for (String s : title) &#123;  </span><br><span class="line">                System.out.print(s + &quot; &quot;);  </span><br><span class="line">            &#125;  </span><br><span class="line">            </span><br><span class="line">            System.out.println(&quot;&quot;);</span><br><span class="line">  </span><br><span class="line">            // 对读取Excel表格内容测试  </span><br><span class="line">            InputStream is2 = new FileInputStream(path);  </span><br><span class="line">            Map&lt;Integer, String&gt; map = excelReader.readExcelContent(is2);  </span><br><span class="line">            System.out.println(&quot;获得Excel表格的内容:&quot;);  </span><br><span class="line">            for (int i = 1; i &lt;= map.size(); i++) &#123;  </span><br><span class="line">                System.out.println(map.get(i));  </span><br><span class="line">            &#125;  </span><br><span class="line">  </span><br><span class="line">        &#125; catch (FileNotFoundException e) &#123;  </span><br><span class="line">            System.out.println(&quot;未找到指定路径的文件!&quot;);  </span><br><span class="line">            e.printStackTrace();  </span><br><span class="line">        &#125;  </span><br><span class="line">    &#125;  </span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
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